Use static prefix and double-quotes for images
Fix code style and l10n issues from pull #55.

* Call to `ugettext` must be called at request time.
* Keyword args must not have space around the `=`.
Include latest json data timestamp in the template.

Add page caching to the main page.
Remove cors headers stuff.
Add back auto-updating nature of getJsonDataUrl.
Fix unix timestamp function to ignore set timezone.

Fix pep8 error of unused import.
Merge pull request #58 from pmclanahan/include-timestamp-in-template

Include latest json data timestamp in the template.
Map updates and fixes

* Fixed percentage and ‘top issue’ continent overlays so that they
resize with the continents on window resize
* Changed ‘view by choice’ labels to circles
* Updated the way glows appear; high-count ones no longer fade-out
during the entire length of the tick, but rather at the end
Merge pull request #62 from sgarrity/image-cleanup

Use static prefix and double-quotes for images
Merge pull request #63 from almossawi/master

Map updates and fixes
Fix unicode issue with l10n string in view.
Map - show continent overlays on top of glows
Merge pull request #64 from almossawi/master

Map - show continent overlays on top of glows
Remove unused CSS.
Fixes for Safari 7.

Browser tested in IE/Firefox/Safari/Chrome Windows/OS X/Linux.
Remove debug code.
Remove "stub" from the download log filter

The stub installer downloads "firefox-latest", so
we'd be counting those twice.
Merge pull request #60 from gauthierm/dialog-transitions-safari7

Dialog transitions safari7
Only show main elements in desktop sizes
JS events for entering and leaving desktop/mobile mode.
Move main choices list into layout for mobile